| 학회 |
한국재료학회 |
| 학술대회 |
2018년 가을 (11/07 ~ 11/09, 여수 디오션리조트) |
| 권호 |
24권 2호 |
| 발표분야 |
5. 유기 및 2D 반도체 박막 형성 및 성능 제어(control of thin-film crystallization and characteristics of organic and |
| 제목 |
Development of high performance planar polymer transistors |
| 초록 |
Conjugated polymers came to an unprecedented epoch that the charge transport is limited only by small disorder within aggregated domains. Accurate evaluation of transport performance is thus vital to optimizing further molecule design. Yet the routine method by means of the conventional field-effect transistors may not satisfy such a requirement. Here we show that the extrinsic effects of Schottky barrier, access transport through semiconductor bulk, and concurrent ambipolar conduction seriously influence transport analysis. The planar transistors incorporating ohmic contacts free of access and ambipolar conduction afford an ideal access to charge transport. It is found, however, that only the planar transistors operating in low-field regime are reliable to explore the inherent transport properties due to the energetic disorder lowering by the lateral field induced by high drain voltage. This work opens up a robust approach to comprehend the delicate charge transport in conjugated polymers so as to develop high-performance semiconducting polymers for the promising plastic electronics. |
| 저자 |
노용영 |
| 소속 |
동국대 |
| 키워드 |
organic field effect transistors; printed electronics; molecular doping; disorder free transport
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| E-Mail |
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